Cxle86122 is a buck constant current driver chip for driving high brightness LED. Few components are used outside cxle86122, providing a high cost-effective solution for MR16 LED lamp cup, led stage lamp, vehicle LED lamp, solar LED lamp and LED street lamp. The input voltage range of cxle86122 is from 5V to 30V, and the maximum output current of a single LED can reach 500mA. Cxle86122 adopts the patented constant current control method to make the LED current accuracy as high as ?3%. Cxle86122 receives 0.5-2.5v analog dimming and wide frequency range PWM dimming through dim pin. When the voltage of dim is lower than 0.3V, the power switch is off, and cxle86122 enters the standby state of very low working current. The cxle86122 has a built-in power switch. Depending on the input voltage, the cxle86122 can drive multiple 1 watt or 2 Watt LEDs
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[ CXLE86122 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
CXLE86122是一款驱动高亮度LED的降压恒流驱动芯片，CXLE86122外部采用极少的元器件，为MR16 LED灯杯、LED舞台灯、车载LED灯、太阳能LED灯和LED路灯提供一个极高性价比的解决方案。CXLE86122输入电压范围从5伏到30伏输出电流通过采样电阻设定，单颗LED最大输出电流可达500毫安。CXLE86122采用专利技术的恒流控制方法使得LED电流精度高达±3％。CXLE86122通过DIM引脚接受0.5-2.5V的模拟调光以及频率范围很宽的PWM调光。当DIM的电压低于0.3V时，功率开关关断，CXLE86122进入极低工作电流的待机状态。CXLE86122 内置功率开关，根据不同的输入电压，CXLE86122 可以驱动多颗1瓦或2瓦的LED。 CXLE86122包含过温保护、LED短路和开路保护功能。CXLE86122采用体积很小SOT23-5封装。
二.产品特点
极少的外部元器件
很宽的输入电压范围：从5V到30V
±3%的输出电流精度
LED开路保护
LED短路保护
过温保护
最大输出500mA的电流
复用DIM引脚进行
LED模拟调光和PWM调光
高达97%的效率
输出可调的恒流控制方法
三.应用范围
MR16/11 LED射灯代替卤素灯 ‹
车载LED灯 ‹
LED舞台灯 ‹
太阳能LED灯 ‹
LED信号灯 ‹
LED路灯
四.技术规格书（产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
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直流驱动 |
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Part number |
Package |
MOS Rdson（Ω） |
Topology |
Vin(V) |
Vout MAX(V) |
Internal-MOS |
Dimming |
|
SOT23-5 |
0.8 |
BUCK |
5~30 |
- |
Y |
PWM/Analog |
|
|
SOT89-5 |
0.6 |
BUCK |
5~30 |
- |
Y |
PWM/Analog |
|
|
ESOP8 |
0.3 |
BUCK-BOOST /BOOST/BUCK |
3-60 |
60 |
Y |
PWM/Analog |
|
|
ESOP8 |
0.8 |
BOOST |
- |
36v |
Y |
PWM/Analog |
|
